Supersymmetry and Dimensional Reduction in Random Field Models

by Apratim Kaviraj & Emilio Trevisani (ENS, Paris & IHES)

Friday Apr 26, 2019, 2:30 PM → 3:30 PM Europe/Paris

Bâtiment Alix et Marwan Lahoud (IHES)

In this talk we will discuss an ongoing work on random field models. First we will review a work by Parisi and Sourlas. They conjectured that the infrared fixed point of such random field models should be described by a supersymmetric conformal field theory (CFT). From this they argued that the disordered CFT admits a description in terms of a CFT in two less spacetime dimensions but without the disorder. We will explain how the dimensional reduction is realized. Finally we will discuss when and how the RG flow of the random field theory reaches the SUSY fixed point.